Unhappy client

Ive been with vodacom for over 10 years and completely traumatized with the experience i have with this agent , completely rude and unprofessional, how can you keep a agent like that on board , i was an apology from her immediately .Rebecca she had the audacity to drop the call on me ... because of this agent I want to cancel my contract with vodacom and will also be canceling my husband's lines